<?php
/**
 * Class File
 * 使用静态文件数据格式提供接口数据
 */

class File{

    private $_dir;
    public function __construct() {
        $this->_dir = dirname(__FILE__).'/files/';
    }

    public static function cacheData($key, $value='', $path='') {

    }
}

File::cacheData();